20075720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71699}}^1$

素因数の和:71717

約数の個数: 32

約数和(自身を含む): 51624000

約数和(自身を除く): 31548280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71699, 143398, 286796, 358495, 501893, 573592, 716990, 1003786, 1433980, 2007572, 2509465, 2867960, 4015144, 5018930, 10037860, 20075720]

約数ペア:

[(1, 20075720), (2, 10037860), (4, 5018930), (5, 4015144), (7, 2867960), (8, 2509465), (10, 2007572), (14, 1433980), (20, 1003786), (28, 716990), (35, 573592), (40, 501893), (56, 358495), (70, 286796), (140, 143398), (280, 71699)]